Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh va » hang va, hanh vi
xa hanh » xa thanh, xa khanh, va hanh
sach tu » sach thu, sach ty, sach uu
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
cach tu » cach thuc
cuu tre » cua tre, cau tren, cau treo
ma hoi » mai hoi, xa hoi, ma hoa
co tuc » co thuc, co tu, co toc
va co » vo co

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach tu) or (cach tu)) nang ma hoi. hieu va co tuc xa hanh va ((cua triet) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach tu) OR (cach tu)) nang ma hoi. hieu va co tuc xa hanh va ((cua triet) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: te ((sach tu) or (cach tu)) nang ma hoi. hieu va co tuc xa hanh va ((cua triet) or (cuu tre))*.